Make an Ableton Live track from chat prompts
A developer used Codex with an MCP server to build and tweak a full Ableton Live song by conversation.
Codex
Agent Uses · 1,321 real examples
Codex use cases
Real examples of people putting Codex to work: the task, how it went, what to watch out for, and a prompt you can adapt.
The day's AI news plus 3 agent uses you can try, with ready-to-paste prompts. Free; unsubscribe anytime.
Run a daily SEO cleanup with Codex
Have Codex review site data each morning, choose five safe SEO edits, and make the changes after checks pass.
Codex
Watch market alerts and label charts with an agent
OpenChart lets Claude or Codex follow alert rules, study price moves, and add linked notes to charts while keeping the work in a local folder.
ClaudeCodex
Build a site from a markdown design spec
They fed a markdown design brief to Codex CLI, then guided a few quick revisions until their personal site felt right.
Codex
Move Claude Code skills into Codex
Charlie Hills used Claude Code and Codex to migrate 201 skills in an afternoon, then checked which parts worked in both tools and which still needed fixes.
Claude CodeCodex
Use Codex to map Reddit complaints by theme
A developer turned Reddit complaint research into a Codex skill that checks communities, gathers quotes, and sorts issues into evidence-backed groups.
Codex
Pit three agents against a browser shooter build
Three coding agents independently built the same multiplayer shooter, letting the team compare their strengths and weak spots.
CodexClaudeGemini
Have terminal agents draft your bookkeeping work
Philip Eriksson used Claude Code and Codex to process receipts, match bank transactions, create draft entries, and spot a VAT issue.
Claude CodeCodex
Sort new arXiv papers before you read them
A weekly Codex agent finds fresh arXiv papers, records them once, and flags the ones worth closer attention.
Codex
Pull published-post stats without editing the dashboard
Charlie Hills used Codex Computer Use to read Substack post metrics across every published entry and verify the count against the dashboard total.
Codex
Use Codex to organize recipes and send a refill request
A communications professional used Codex to sort family-friendly recipes and message her son’s doctor about a refill.
Codex
Use Codex Skills for tickets, analytics, and upkeep
They set up Codex Skills to draft Linear tickets from voice notes, check YouTube stats, and run routine self-improvement tasks.
Codex
Investigate why a service is getting killed
Run a read-only SSH check to find the cause of a process death and rank fixes by risk.
CodexClaude Code
Run department agents with guarded access and memory
This setup lets Claude Code and Codex work as ongoing department agents with approvals, schedules, and shared memory.
Claude CodeCodex
Research hotels and launch a custom trip site with Codex
Claire used Codex on her phone to steer a Mac, compare lodging, map it in Google Maps, and publish a vacation-planning site.
Codex
Draft S-corp tax calculations from bookkeeping records
A developer had Claude Code build tax-calculation scripts from bookkeeping files, then used Codex to audit the logic and catch an incorrect Schedule L mapping.
Claude CodeCodex
Use Codex for everyday computer chores
People used Codex for research, file searches, slide edits, spreadsheet cleanup, and other routine work.
Codex
Screen papers in a folder against your criteria
Codex can read PDFs or spreadsheets in a project folder, sort items by your rules, and write the results into new files.
Codex
Review a pull request with staged sub-agents
Use parallel checks and a validation pass to review a branch or PR before you decide what to fix.
Claude CodeCodex
Schedule project file summaries and email them
Set up Codex to read a project folder on a schedule and email a summary through Gmail.
Codex
Repair a formal proof by iterating on code and builds
Codex fixed CertiGC proofs in Rocq with human review on any change that could alter the specification.
Codex
Use a long-running agent to chase a stubborn bug
A developer let Codex work overnight against a repeatable test, using debug prints and hypotheses to track down an unexplained bug.
Codex
Turn tracked tickets into pull requests
Use an agent to pick up issues or tickets, make the code change in an isolated pod, and open a PR for review.
Claude CodeCodex
Flag coding conflicts before agents edit
They set up a local layer that makes coding agents announce planned changes so overlapping architecture work gets caught early.
Claude CodeCodexCursor